Abstract
This paper presents an adaptive focus stacking method for large depth-of-field (DOF) 3D microscopic structured-light imaging systems. Conventional focus stacking methods typically capture images under a series of pre-defined focus settings without considering the attributes of the measured object. Therefore, it is inefficient since some of the focus settings might be redundant. To address this problem, we first employ the focal sweep technique to reconstruct an initial rough 3D shape of the measured objects. Then, we leverage the initial 3D data to determine effective focus settings that focus the camera on the valid areas of the measured objects. Finally, we reconstruct a high-quality 3D point cloud using fringe images obtained from these effective focus settings by focus stacking. Experimental results demonstrate the success of the proposed method.
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Roland Ramm, Mohsen Mozaffari-Afshar, Daniel Höhne, Thomas Hilbert, Henri Speck, Siemen Kühl, Daniela Hoffmann, Sebastian Erbes, Peter Kühmstedt, Stefan Heist, and Gunther Notni
Opt. Express 30(13) 22590-22607 (2022)
Xiaowei Hu, Song Zhang, Yujin Zhang, Yongpan Liu, and Guijin Wang
Opt. Express 28(21) 31197-31208 (2020)
Xiaowei Hu, Guijin Wang, Yujin Zhang, Huazhong Yang, and Song Zhang
Opt. Express 27(21) 29697-29709 (2019)